This standard specifies the quinoline phosphomolybdate gravimetric method for determining the total phosphorus pentoxide content of sodium tripolyphosphate (pentasodium triphosphate) for industrial use.
GB/T 9984.2-1988 history
2008GB/T 9984-2008 Test methods for industrial sodium tripolyphosphate
2004GB/T 9984.2-2004 Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method
1988GB/T 9984.2-1988 Sodium tripolyphosphate for industrial use--Determination of total phosphorus pentoxide content--Quinoline phosphomolybdate qravimetric method